rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10021/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=43077, q=795839 ncpus=2)
task:syz.1.824 state:R running task stack:23536 pid:10021 tgid:10017 ppid:8778 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_stack_walk+0x102/0x150 arch/x86/kernel/stacktrace.c:27
Code: ff ff 4c 89 e6 4c 89 fa e8 0b d8 09 00 83 bd 70 ff ff ff 00 74 37 48 8d 9d 70 ff ff ff 48 89 df e8 b3 ae 09 00 48 85 c0 74 23 <4c> 89 f7 48 89 c6 4d 89 eb 41 ff d3 66 90 84 c0 74 11 48 89 df e8
RSP: 0018:ffffc90004a26900 EFLAGS: 00000286
RAX: ffffffff8a817cb1 RBX: ffffc90004a26900 RCX: ffffffff91792000
RDX: ffffffff91942801 RSI: ffffc90004a20000 RDI: ffffffff8a817cb1
RBP: ffffc90004a26990 R08: ffffc90004a27050 R09: 0000000000000000
R10: ffffc90004a26950 R11: fffff52000944d2c R12: ffff88802f0ebc00
R13: ffffffff818b4ab0 R14: ffffc90004a269e0 R15: 0000000000000000
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659
__slab_free+0x2c2/0x380 mm/slub.c:4524
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4119 [inline]
slab_alloc_node mm/slub.c:4168 [inline]
__kmalloc_cache_noprof+0x1d9/0x390 mm/slub.c:4324
kmalloc_noprof include/linux/slab.h:901 [inline]
call_modprobe kernel/module/kmod.c:83 [inline]
__request_module+0x2b9/0x640 kernel/module/kmod.c:172
crypto_larval_lookup crypto/api.c:301 [inline]
crypto_alg_mod_lookup+0xe7/0x760 crypto/api.c:348
crypto_find_alg crypto/api.c:597 [inline]
crypto_alloc_tfm_node+0x130/0x360 crypto/api.c:634
esp_init_authenc net/ipv6/esp6.c:1119 [inline]
esp6_init_state+0x611/0x10b0 net/ipv6/esp6.c:1189
__xfrm_init_state+0x9db/0xea0 net/xfrm/xfrm_state.c:3056
xfrm_state_construct net/xfrm/xfrm_user.c:854 [inline]
xfrm_add_sa+0x2c6e/0x3d70 net/xfrm/xfrm_user.c:912
xfrm_user_rcv_msg+0x890/0xb90 net/xfrm/xfrm_user.c:3373
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542
xfrm_netlink_rcv+0x79/0x90 net/xfrm/xfrm_user.c:3395
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:726
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
___sys_sendmsg net/socket.c:2637 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2669
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7ddd185d29
RSP: 002b:00007f7dddfcf038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7ddd375fa0 RCX: 00007f7ddd185d29
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000006
RBP: 00007f7ddd201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7ddd375fa0 R15: 00007f7ddd49fa28
rcu: rcu_preempt kthread starved for 1213 jiffies! g43077 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:26264 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-rc6-syzkaller-00262-gb62cef9a5c67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:109 [inline]
RIP: 0010:do_raw_spin_lock+0x2d5/0x370 kernel/locking/spinlock_debug.c:116
Code: e1 07 80 c1 03 38 c1 0f 8c 3d fe ff ff 48 89 df e8 50 ba 89 00 48 ba 00 00 00 00 00 fc ff df e9 26 fe ff ff 44 89 f1 80 e1 07 <80> c1 03 38 c1 0f 8c 4d fe ff ff 4c 89 f7 e8 18 bb 89 00 e9 40 fe
RSP: 0018:ffffc90000a178a0 EFLAGS: 00000046
RAX: 0000000000000004 RBX: dffffc0000000000 RCX: 0000000000a17900
RDX: dffffc0000000000 RSI: 1ffff92000142f1c RDI: ffff88806ed12608
RBP: ffffc90000a17970 R08: ffffffff942a58bf R09: 1ffffffff2854b17
R10: dffffc0000000000 R11: fffffbfff2854b18 R12: ffff88806ed12608
R13: 1ffff92000142f20 R14: ffffc90000a17900 R15: 1ffff1100dda24c2
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5b7c758e5 CR3: 000000002d9b8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
_raw_spin_lock_irqsave+0xe1/0x120 kernel/locking/spinlock.c:162
ref_tracker_alloc+0x1c3/0x490 lib/ref_tracker.c:212
__netdev_tracker_alloc include/linux/netdevice.h:4136 [inline]
netdev_hold include/linux/netdevice.h:4165 [inline]
dst_init+0xee/0x490 net/core/dst.c:52
dst_alloc+0x14f/0x190 net/core/dst.c:93
rt_dst_alloc net/ipv4/route.c:1625 [inline]
__mkroute_output net/ipv4/route.c:2618 [inline]
ip_route_output_key_hash_rcu+0x13cc/0x2390 net/ipv4/route.c:2840
ip_route_output_key_hash+0x193/0x2b0 net/ipv4/route.c:2669
__ip_route_output_key include/net/route.h:141 [inline]
ip_route_output_flow+0x29/0x140 net/ipv4/route.c:2897
ip_route_output_key include/net/route.h:151 [inline]
ip_route_me_harder+0x877/0x1360 net/ipv4/netfilter.c:53
synproxy_send_tcp+0x356/0x6c0 net/netfilter/nf_synproxy_core.c:431
synproxy_send_client_synack+0x8a4/0xe20 net/netfilter/nf_synproxy_core.c:484
nft_synproxy_eval_v4+0x3ca/0x610 net/netfilter/nft_synproxy.c:59
nft_synproxy_do_eval+0x362/0xa60 net/netfilter/nft_synproxy.c:141
expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5704 [inline]
__netif_receive_skb+0x2bf/0x650 net/core/dev.c:5817
process_backlog+0x662/0x15b0 net/core/dev.c:6149
__napi_poll+0xcb/0x490 net/core/dev.c:6902
napi_poll net/core/dev.c:6971 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7093
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
do_softirq+0x11b/0x1e0 kernel/softirq.c:462
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:389
spin_unlock_bh include/linux/spinlock.h:396 [inline]
cfg80211_inform_single_bss_data+0x1707/0x2070 net/wireless/scan.c:2350
cfg80211_inform_bss_data+0x3ce/0x5e80 net/wireless/scan.c:3189
cfg80211_inform_bss_frame_data+0x3bb/0x720 net/wireless/scan.c:3284
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1101 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1580 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1969/0x2d70 net/mac80211/ibss.c:1607
ieee80211_iface_process_skb net/mac80211/iface.c:1613 [inline]
ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1667
cfg80211_wiphy_work+0x2db/0x480 net/wireless/core.c:440
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244